Sludge deep dehydration system

Abstract

The invention discloses a sludge deep dehydration system which is mainly formed by combining a primary treatment tank (1), a secondary treatment tank (2), a screw feeder (3) and a filter press (4), the primary treatment tank (1) is arranged on the secondary treatment tank (2), the screw feeder (3) is connected with the lower end of the secondary treatment tank (2), the discharge hole of the screw feeder (3) is connected with the filter press; the deep sludge dewatering system is simple in structure and low in use cost, the service time of the filter layer can be effectively prolonged, the dewatering efficiency is improved, three-stage dewatering is adopted, the sludge dewatered by the system is good in dewatering effect, the dewatering work can be continuously carried out, and the dewatering efficiency is more than three times that of existing dewatering equipment.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a sludge deep dewatering system. Background technique [0002] Sludge is a solid sediment produced in the process of water and sewage treatment. Because the properties of various sludges vary greatly, classification is very necessary, and their treatment and disposal are also different. According to its source, it can be divided into: municipal sludge, which mainly refers to sludge from sewage plants, which is the largest type of sludge. In addition, sludge from waterworks also comes from municipal facilities and can be classified into this category; pipe network sludge, sludge from drainage collection systems; river and lake sludge, sludge from rivers and lakes; industrial sludge, from various Mixture of solids produced by industrial production with water, oil, chemical pollution, and organic matter. [0003] The main feature of sludge is high water content, even as high as 99%...

AI Technical Summary

Problems solved by technology

[0004] Common sludge dewatering methods include drying method, mechanical method, and conditioning method, which are mostly realized by relying on equipment. However, the dehydration efficiency of existing sludge dewatering equipment is low. If a batch of dehydration needs to reach the standard of less than 60%, it takes up to 8 The requirement can be effectively met within about 1 hour, and a large amount of sundries are mixed in the sludge. Due to the relatively high viscosity of the sludge, the sundries and sludge can easily cause blockage to the equipment. In the case of no filtering equipment, continuous To dredge it, and the equipment with filter device needs to be replaced frequently, which greatly reduces the efficiency of sludge dewatering

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